Finding the Third Proportional to 6,223.50 and 10,788.75

Step by Step Solution

1. Step 1: Write the proportion equation
   6,223.50 : 10,788.75 = 10,788.75 : x
2. Step 2: Convert to fraction form
   6,223.50/10,788.75 = 10,788.75/x
3. Step 3: Cross multiply
   6,223.50x = 10,788.75 × 10,788.75
4. Step 4: Simplify right side
   6,223.50x = 116,397,126.56
5. Step 5: Solve for x
   x = 116,397,126.56/6,223.50
6. Step 6: Final answer
   x = 18,702.84